<template>
  <HomePanel title="热门品牌" sub-title="国际经典 品质保证">
    <template v-slot:right>
      <a href="javascript:;" :class="{ disabled: index === 0 }" class="iconfont icon-angle-left prev"  @click="prev"></a>
      <a href="javascript:;" :class="{ disabled: index === 1 }" class="iconfont icon-angle-right next" @click="next"></a>
    </template>
    <div class="box" ref="target">
      <Transition name="fade">
        <ul class="list" v-if="brands.length > 0" :style="{ transform: `translateX(${-index * 1240}px)` }">
          <li v-for="item in brands" :key="item.id">
            <RouterLink to="/">
              <img :src="item.picture" alt="">
            </RouterLink>
          </li>
        </ul>
        <!-- 骨架屏 -->
        <div class="home-skeleton" v-else>
          <div
            class="item"
            v-for="i in 5"
            :key="i"
          >
            <XtxSkeleton bg="#e4e4e4" width="240px" height="305px" animated />
          </div>
        </div>
      </Transition>
      </div>
  </HomePanel>
</template>

<script>
import HomePanel from './home-panel'
import { findBrand } from '@/api/home'
import { useLazyData } from '@/hooks'
import { ref } from 'vue'
export default {
  name: 'HomeBrand',
  components: { HomePanel },
  setup () {
    const { result: brands, target } = useLazyData(() => findBrand(10))
    // console.log(result)

    // 控制下标
    const index = ref(0)
    const prev = () => {
      if (index.value === 0) return
      index.value--
    }
    const next = () => {
      if (index.value === 1) return
      index.value++
    }
    return {
      brands,
      target,
      index,
      prev,
      next
    }
  }
}
</script>

<style scoped lang='less'>
.home-panel {
  background:#f5f5f5
}
.iconfont {
  width: 20px;
  height: 20px;
  background: #ccc;
  color: #fff;
  display: inline-block;
  text-align: center;
  margin-left: 5px;
  background: @xtxColor;
  &::before {
    font-size: 12px;
    position: relative;
    top: -2px
  }
  &.disabled {
    background: #ccc;
    cursor: not-allowed;
  }
}
.box {
  display: flex;
  width: 100%;
  height: 345px;
  overflow: hidden;
  padding-bottom: 40px;
  .list {
    width: 200%;
    display: flex;
    transition: all 1s;
    li {
      margin-right: 10px;
      width: 240px;
      &:nth-child(5n) {
        margin-right: 0;
      }
      img {
        width: 240px;
        height: 305px;
      }
    }
  }
}

.home-skeleton {
  width: 100%;
  display: flex;
  .item {
    margin-right: 10px;
    &:nth-child(5n) {
      margin-right: 0;
    }
  }
}
</style>
